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VerbascumCommon name; Mullein A tall flowering perennial suited for the back of the herbaceous border. It grows to around 900-1200mm (3-4ft) high and flowers from July onwards.
Week 13; If not done in November and if conditions allow, take 75mm (3”) root cuttings and insert them into a 50-50 (by volume) mixture of compost and sharp sand and grow on in a coldframe. When the plants show three to four leaves pot them up into 75mm (3") pots of potting compost and grow them on in a coldframe until planting out time.
Week 15; Sow seed and germinate at a temperature of 18°C (64°F) Germination should take 7-10 days. When seedlings are large enough to handle, prick them out into 75mm (3") Grow on at a temperature of 12°-16°C (54°-61°F) for a couple of weeks then place them in a cold frame until planting out time. Week 35; Plant out now or in March –April 300-400m (12-15") apart in an open, sunny site that has good drainage and moderate fertility. Remove dying spikes regularly and they should flower continually during the summer.
Week 45; Cut plants down to ground level.
Week 46; If conditions allow, take 75mm (3”) root cuttings and insert them into a 50-50 (by volume) mixture of compost and sharp sand and grow on in a coldframe. When the plants show three to four leaves pot them up into 75mm (3") pots of potting compost and grow them on in a coldframe until planting out time.
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